and intelligence (S-2) staffs. Embarking on the augmented recon and UDT team, along with the four UDTs embarked on high-speed transport ships , , and , and headed to Iwo Jima, arriving just off the eastern beaches of Iwo Jima on the morning of 17 February 1945, two days prior to D-Day (D-2). Naval gunfire support commenced from battleships , and and by 1025, Admiral William Blandy ordered the fire-support battleships to retire and clear the approach lanes for the UDT and recon Marines. The UDT and Marines were tasked with taking photographs of the beaches and enemy defenses, if possible. At 1100, the four APDs slowed and dropped the Higgins boats, launching their rubber boats. While they made their preliminary landing toward shore, they immediately encountered enemy fire. Evading fire, they made their way to the beachhead, every one of the twelve landing personnel carriers were either hit or sinking. After completing their photo reconnaissance, they made their way on the remaining landing craft still floatable and returned to the APDs. Korean War In 1950, with the outbreak of the Korean War the Marine Corps Reserve was activated. San Antonio Marines joined the mobilization via troop train to Marine Corps Base Camp Pendleton, California in July 1950. Interim years February 1991—March 1991, the Marines of 4th Reconnaissance Battalion volunteered for extended active duty in support of three counter-narcotic operations under the control of Joint Task Force Six headquarters in El Paso, TX. Operation Iraqi Freedom Marines from 4th Reconnaissance Battalion have served multiple combat tours in support of Operation Iraqi Freedom supporting active-duty Force Reconnaissance units and Division-level reconnaissance units. In 2003 Delta Company, attached to 1st Recon Battalion, was one of the first Marine Units in many parts of Iraq. The Battalion acted as the Spear head for the 1st Marine Division spawning the book and HBO Show "Generation Kill". Charlie Company augmented 2nd Force Reconnaissance Company, II Marine Expeditionary Force in support of Task Force Tarawa. Charlie Company lead reconnaissance efforts through the initial invasion of Iraq, during the Battle of An Nasiriyah, the Jessica Lynch rescue, and initial movements to secure Baghdad and Al-Kut. In 2004, Bravo Company, attached to 2nd Reconnaissance Battalion, participated in the Second Battle of Fallujah. In 2005 Headquarters and Service Company augmented 3d Battalion, 25th Marines in Al Anbar. In 2006 and 2007, 4th Reconnaissance Battalion headquarters and platoons operated as